How to Analyze Chemical Oxygen Demand in Water

A step by step guide on how to analyze chemical oxygen demand (COD) in water using test kits from Hach. This video was created by Jackie Cooper, Lab Manager of the Environmental Engineering Core Facility (EECF), of the Civil and Environmental Engineering Department at the University of Wisconsin-Madison.

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How do you correct chloride concentration above 2000mg/L in saline water

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how to calculate the results of COD

[@alexgunawan98]

Any Paper strip test for this ?

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Hi Alex. Unfortunately there isn’t a test strip for COD analysis. Because of the organic matter, there has to be a way to digest that material for analysis. A good summary of various measurement tests for the determination of COD can be found here: blog.hannainst.com/cod-testing

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10:50 I wash them with soap...